EP3735722B1 - Contact carrier and plug connector for a shielded hybrid contact assembly - Google Patents

Description

The invention is based on a contact carrier for a connector, for a shielded hybrid contact arrangement according to the preamble of independent claim 1.

Furthermore, the invention is based on a system formed from a Y-shaped shielding element and at least four, preferably eight, crimp contacts, of which at least two, preferably four, are designed as signal contacts and at least two, preferably four, as power contacts and a contact carrier according to independent claim 1.

The number "at least two, preferably four" means that, for example, at least four and therefore more than four power contacts or signal contacts can also be provided. At least four, preferably eight crimp contacts means that at least eight crimp contacts, e.g. more than eight crimp contacts, can also be provided.

Furthermore, the invention relates to a connector that has such a system.

The invention also relates to a method for assembling such a system.

Contact carriers of this type are required in order to keep a number of electrical signal and power contacts shielded from one another in a connector.

State of the art

In the prior art, connectors with shielding elements for signal separation of four different differential signal pairs are, for example, from the publication EP 2 745 354 A1 known. Because of its shape, a suitable screen element can also be referred to as a “screen cross” or as “X-shaped” or “X-coded”. For example, the pamphlet shows DE 10 2015 119 087 A1 a hybrid connector with a contact carrier according to the preamble of claim 1. With such hybrid transmission contact arrangements "both electrical energy and electrical signals can be transmitted. While the arrangement disclosed in this publication uses a shielding housing, for such hybrid connectors, for example from the standard / the International Standard IEC 61076-2-113 also known as "Y-shaped shielding elements". Such a Y-shaped shielding element can be used in a contact carrier to shield, for example, two pairs of differential signal transmission plug contacts from one another and also from electrical energy transmission plug contacts also held in the contact carrier. The plug contacts are Depending on the type of construction, it is already permanently integrated in the contact carrier at the factory. Thus, the plug contacts can no longer be removed from the contact carrier during connection, assembly and/or installation of the plug connector. These plug contacts can be solder contacts, for example, which have a solder connection on the cable connection side and can be freely assigned during installation by the user of the connector, for example by soldering on wires of a multi-core electrical cable for the respective application.

A disadvantage of this prior art is that there are no plug connectors, in particular with a center contact, which allow such Y-coded shielding to be assembled in the field for crimp contacts.

The German Patent and Trademark Office has researched the following prior art in the priority application for the present application: DE 10 2015 210 336 A1 , US 6,494,743 B1 , EP 3 104 469 A1 , DE 10 2010 051 954 B3 and US 2016/0049747 A1 .

task

The object of the invention consists in specifying a contact carrier for a connector which also permits such a Y-coding for crimp contacts.

This object is solved by the features of the characterizing part of independent claim 1.

A contact carrier for a connector is provided to accommodate at least four, preferably eight, electrical crimp contacts. At least two, preferably four, of the crimp contacts are designed as signal contacts and at least two, preferably four, further crimp contacts are designed as power contacts.

For this purpose, the contact carrier has at least two, preferably four, signal contact receptacles and at least two, preferably four, power contact receptacles. Furthermore, the contact carrier is designed in several parts. A first contact carrier part has at least two, preferably four, signal contact receptacles. A second contact carrier part has at least one, preferably at least three, of the energy contact receptacles. Another of the energy contact receptacles is arranged as a center contact receptacle in the contact carrier between the first and the second contact carrier part.

This center contact receptacle can be arranged at least largely in the first contact carrier part or at least largely in the second contact carrier part or in equal parts in the first and second contact carrier part.

The center contact is used to receive one of the energy contacts, which is a center contact. The entire contact carrier therefore has a total of at least four, preferably eight, contact receptacles. One of the two said contact carrier parts, preferably the first contact carrier part, has a holder, through which a Y-shaped receiving slot is preferably formed in the contact carrier. A Y-shaped shielding element can be held on the holder, in particular by the Y-shaped mounting slot, through which at least two signal contact mounts can be separated both from one another and from the power contact mounts. In particular, the first contact carrier part can have four signal contact receptacles, and two pairs of signal contact receptacles can thus be separated both from one another and from the power contacts by the shielding element. This is particularly advantageous for differential signal transmission.

The number "at least two, preferably four" means that, for example, at least four and therefore also more than four energy contact receptacles or signal contact receptacles can be provided in the contact carrier. At least four, preferably eight contact receptacles means that a total of at least eight, e.g. more than eight contact receptacles can be provided in the contact carrier.

Advantageous refinements of the invention are specified in the dependent claims.

The invention has the particular advantage that crimp contacts can now also be used as plug contacts in a Y-coded plug connector, in particular for field assembly, which advantageously provides the advantages for which crimping is known, namely its ergonomic production and its long-term stable and reliable conduction behavior with low contact resistance are also made possible for the typical hybrid design of connectors.

At least one of the two said contact carrier parts, ie the first and/or the second contact carrier part, has the said holder on which the Y-shaped shielding element can be held/attached. The first contact carrier part preferably has this holder. The Y-shaped shielding element ensures that the pairs of signal contact receptacles can be separated both from one another and from the power contact receptacles by a respective section of the shielding element.

Another advantage is that the center contact, which is an energy contact, can be arranged essentially in the center of the mating face of the contact carrier, viewed from the plug-in direction, because the available space is used particularly advantageously, which is particularly advantageous due to the multi-part Design of the insulator is made possible. "Essentially in the middle" means in this context that the distance between an axis of symmetry of the basic shape of the center contact and an axis of symmetry of the basic shape of the contact carrier is no more than 20%, preferably no more than 15%, in particular no more than 10% and particularly preferably no more than 5% of the diameter of the contact carrier.

For example, the contact carrier can have a cylindrical shape because it is intended for a circular connector, for example. For example, the bullet connector may be of the type described in the 2017 standard IEC 61076-2-113. In this example, the diameter of the contact carrier can be 8.3 mm. The center contact can then be 0.4 mm "off axis", i.e. the distance between the two axes of symmetry is then less than 5% of the diameter of the contact carrier.

It is advantageous that this center contact is provided for electrical energy transmission, ie it is an energy contact. Finally, the power contacts require more space than the signal contacts. Furthermore, it is advantageous for signal separation to separate at least two signal contacts, preferably two signal contact pairs, both from one another and from the power contacts by the Y-shaped shield cross.

The crimp contacts each have a crimp connection on the cable connection side and a plug-in area on the opposite side. The plug-in area can be formed by a contact pin or a contact socket.

In a preferred embodiment, the crimp contacts each have an essentially cylindrical plug-in area, through which a contact pin is formed in each case. In this case, the crimp contacts are pin contacts. In this context, "substantially" means, among other things, that the plug-in area can be rounded off at its end. The diameter of the signal contact can also taper slightly in some areas along the plug-in direction towards the plug-side end. The contact pins of the signal contacts can then have a diameter which, at least in sections, is slightly conical is also partially, particularly in the end-side plug-in area, cylindrical. In another embodiment, the contact pins can be cylindrical over their entire area. Furthermore, the plug-in areas of the signal contacts can have a smaller diameter than the plug-in areas of the power contacts.

In an alternative embodiment, the crimp contacts are socket contacts. They then each have an essentially hollow-cylindrical plug-in area, through which a contact socket is formed in each case. The female contacts of the power contacts can have an inner diameter that is larger than the inner diameter of the female contacts of the signal contacts.

Accordingly, the power contact receptacles of the insulating body can also have a larger diameter than the signal contact receptacles, at least in some areas.

The connection of the cable to the connector usually takes place during the installation of the connector, ie at the customer's site and usually also by the customer of the connector.

In contrast to other cable-side contacting methods, such as soldering the individual cable strands to a cable connection area of a plug contact, a crimp connection must be assembled before it is installed in the contact carrier, i.e. each crimp contact is first attached to its cable connection-side crimp connection outside of the contact carrier electrical conductors, such as the core of a multi-core cable, crimped and only then inserted into the contact carrier.

The fact that the contact carrier consists of several parts takes account of the customer's desire for the connector to be assembled in the field, i.e. the customer can assemble the connector himself using standard tools, e.g. crimping pliers, i.e. crimp it in this case, and only then insert it into the contact carrier. This enables him, for example, to determine the correct cable lengths on site and connect the plug to permanently installed cables, etc.

In particular, it is advantageous that the customer can use a mating face with a center contact if required. With such a center contact, the plug-in area can be better utilized and the number of plug-in contacts can thus be increased, in particular in the case of a round plug connector. Many common plug faces of corresponding mating plugs have such a center contact, so that enabling it is also of particularly great advantage for reasons of compatibility.

To this end, it is advantageous for the contact carrier to have a multi-part design, because this allows the center contact to be arranged between at least two contact carrier parts, in particular the first and the second contact carrier part. In particular, the contact carrier can have three contact carrier parts, of which at least two contact carrier parts, namely a first and a second contact carrier part, can be fixed, in particular latched, to one another. As a result, when installing the plug connector, the contact carrier can first be provided with the crimp contacts and then mounted, ie assembled. This applies in particular when using the said "center contact", which is characterized in principle by the fact that its plug-in area is arranged essentially in the middle of the plug-in face of a connector to which the contact carrier belongs.

The customer, who can be regarded as the user of the plug connector, is therefore able to first crimp the plug contacts on the cable connection side with electrical conductors, e.g. the cores of a multi-core electrical cable, during assembly. After that, the plug contacts, which are crimped in particular at the place of use, can be inserted into the first contact carrier part and into the second contact carrier part of the insulating body. These two contact carrier parts of the insulating body can then be assembled, at least part of the Y-shaped shielding element being arranged on at least one of the contact carrier parts or between them at least in regions. Preferably, at least one of the two contact carrier parts, in particular the first contact carrier part, can have the aforesaid holder for holding the Y-shaped shielding element, on which the Y-shaped shielding element is held. In addition, the Y-shaped screen element can be fixed between the first and the second contact carrier part by fastening them to one another.

One or more contact carrier parts can be attached at least partially in a form-fitting manner to the associated sections of the Y-shaped shielding element when they are assembled. At least two contact carrier parts can be attached to the Y-shaped shielding element on the cable connection side and thus protrude beyond the Y-shaped shielding element on the cable connection side. So they can preferably be attached to each other in this area, for example by mutual latching. In particular, they can also thereby hold the Y-shaped screen element between one another at least in regions and thereby advantageously additionally fasten it.

The Y-shaped shielding element is formed from an electrically conductive material or has at least electrically conductive areas, for example an electrically conductive coating. In particular, the Y-shaped screen element can be made of metal. The Y-shaped screen element has advantageously electrically and/or magnetically shielding properties. In particular, the screen element can be designed as a die-cast zinc part and coated with nickel. In this way, particularly good electrical and/or magnetic shielding can be achieved.

The Y-shaped screen element is made in one piece, ie it has three screen sections, namely a first, a second and a third screen section, which are formed on one another on a common axis. In particular, the basic shape of the Y-shaped screen element can be designed to be essentially mirror-symmetrical, with the mirror plane running through the first screen section.

In an advantageous embodiment, the first and the second contact carrier part can be fixed to one another. In particular, as a result, they are fixed against movement at right angles to the insertion direction, in particular against movement away from one another.

In a particularly advantageous embodiment, the Y-shaped shielding element protects these two contact carrier parts from rotating relative to one another, in particular due to molded anti-twist surfaces. As a result, the injection molding tool for the contact carrier advantageously does not require any devices for producing such anti-rotation means, such as additional slides for anti-rotation protection, latches, pins or the like.

In a further preferred embodiment, a third contact carrier part of the preferably three-part contact carrier is formed by a sleeve with an insertion opening on the cable connection side. Through this receiving sleeve, the first and the second contact carrier part are in together with the Y-shaped shielding element held thereon and in particular also with the crimp contacts accommodated in the contact carrier can be pushed into the sleeve in the state fixed to one another.

The third contact carrier part can also have a plug-in section opposite the insertion opening with through-openings which are suitable for the plug-side feedthrough of plug-in areas of the crimp contacts and/or for the plug-side feedthrough of a plug-side section of the Y-shaped shielding element. Advantageously, the through-openings can correspond to them in terms of arrangement and shape.

In this plug-in section of the contact carrier, one of the four power contacts, in particular, namely the center contact, can be arranged with its plug-in area essentially in the middle.

• Anbringen des Y-förmigen Schirmelements an der Halterung des mehrteiligen Kontaktträgers;
• Vercrimpen elektrischer Leiter an den Crimpkontakten;
• Einlegen des Mittenkontakts in die dazugehörige Energiekontaktaufnahme des mehrteiligen Kontaktträgers;
• gegenseitiges Fixieren des ersten und des zweiten Kontaktträgerteils aneinander;
• Einbringen der Signalkontakte in die Signalkontaktaufnahmen des ersten Kontaktträgerteils und Einbringen der Energiekontakte, mit Ausnahme des bereits eingebauten Mittenkontakts, in die Energiekontaktaufnahmen des zweiten Kontaktträgerteils;
• gemeinsames Einschieben des ersten und zweiten Kontaktträgerteils mit dem daran gehaltenen Y-förmigen Schirmelement und darin aufgenommenen Crimpkontakten durch die Einführöffnung des dritten Kontaktträgerteils in das dritte Kontaktträgerteil.

A method for assembling such a contact carrier can have the following steps:

• attaching the Y-shaped shield element to the support of the multi-part contact carrier;
• crimping electrical conductors at the crimp contacts;
• Insertion of the center contact in the associated power contact receptacle of the multi-part contact carrier;
• mutual fixing of the first and the second contact carrier part to one another;
• Insertion of the signal contacts in the signal contact receptacles of the first contact carrier part and insertion of the power contacts, with the exception of the central contact already installed, in the power contact receptacles of the second contact carrier part;
• sliding the first and second contact carrier parts together with the Y-shaped screen element held thereon and therein recorded crimp contacts through the insertion opening of the third contact carrier part in the third contact carrier part.

The first process step mentioned, namely attaching the Y-shaped shielding element to the holder of the multi-part contact carrier, can already be carried out at the factory, i.e. the customer receives the first contact carrier part from the connector manufacturer with the shielding element pre-assembled on it, but can carry out the further process steps himself. This allows a connector with a center contact to be crimped in the field.

By finally pushing the first two contact carrier parts fixed to one another into the third contact carrier part, the plug-in areas of the crimp contacts can be inserted into and preferably also passed through the through-openings, so that they protrude on the plug-in side, especially when it comes to pin contacts, or, when it comes to Socket contacts are, for example, but can also complete with the plug-in area.

Of course, the sequence of the method steps is not fundamentally binding. Some of the process steps can also be carried out in a different order where this appears sensible to the person skilled in the art. At this point, a more precise listing of all possible sequences of the method steps is dispensed with, since the formation of a meaningful sequence based on the preceding considerations can be attributed to the understanding and skills of an average person skilled in the art.

In summary, but not by way of limitation, the following configuration is disclosed to the person skilled in the art from the above considerations: To accommodate the eight electrical crimp contacts, namely four electrical signal contacts and four electrical power contacts and a Y-shaped shielding element in the hybrid electrical connector, the contact carrier can be made in several parts, in particular in three parts. The signal contact receptacles for receiving the signal contacts are arranged in the first contact carrier part. Depending on the design, the center contact can be arranged on the first or on the second contact carrier part and, in particular, can be locked thereon. The additional power contact receptacles are arranged in the second contact carrier part to accommodate the wide power contacts. When these two contact carrier parts are attached to one another, the center contact can thus come to lie between the two contact carrier parts, namely the first and the second contact carrier part, and be held there. In addition, the Y-shaped shielding element is held on a holder of the first contact carrier part and can be arranged in regions between the first and second contact carrier parts. This arrangement, consisting of the first and the second contact carrier part, the crimp contacts accommodated therein and the Y-shaped shielding element held thereon, is then pushed together into the third contact carrier part. In this case, a plug-side section of the third contact carrier part is penetrated by the plug-in areas of the crimp contacts and the Y-shaped shield cross. The center contact is arranged with its mating area essentially in the center of the mating face of the connector. At the same time, the signal contact pairs are electrically and/or magnetically shielded from each other and from the power contacts by a respective section of the Y-shaped shielding element.

example

Fig. 1a - d

einen dreiteiligen Kontaktträger;

Fig. 2a, b

zwei Crimpkontakte;

Fig. 3

ein Y-förmiges Schirmelement;

Fig. 4a, b

das erste Kontaktträgerteil mit dem Schirmelement;

Fig. 5a

ein mehradriges Kabel mit angecrimpten Crimpkontakten;

Fig. 5b

das Kabel mit einem in das zweite Kontaktträgerteil eingelegten Mittenkontakt;

Fig. 6a, b

das erste Kontaktträgerteil in einer zweiten Ausführungsform;

Fig. 7a, b

das vorgenannte Kontaktträgerteil mit dem Schirmelement und dem Mittenkontakt;

Fig. 8a, b

die vorgenannte Anordnung mit dem zusätzlich daran gehaltenen Schirmelement und dem daran verrasteten zweiten Kontaktträgerteil in einer zweiten Ausführungsform;

Fig. 9a - d

den Rastmechanismus zwischen dem ersten und dem zweiten Kontaktträgerteil;

Fig. 10a - c

die Anordnung aus der Fig. 8 mit den zusätzlich eingelegten restlichen Crimpkontakten;

Fig. 11a

die vorgenannte Anordnung mit dem dritten Kontaktträgerteil im einzuführenden Zustand;

Fig. 11b - c

die vorgenannte Anordnung im eingeführten Zustand;

Fig. 12a

die vorgenannte Anordnung mit einem Schirmanbindungselement;

Fig. 12b

die vorgenannte Anordnung mit einem ausgewählten Dichtungsring;

Fig. 12c - e

die vorgenannte Anordnung mit einem Steckverbindergehäuse, einer Kabelverschraubung und einer steckseitigen Rändelschraube.

An embodiment of the invention is shown in the drawings and is explained in more detail below. Show it:

Fig. 1a - d

a three-part contact carrier;

Fig. 2a, b

two crimp contacts;

3

a Y-shaped screen element;

Fig. 4a, b

the first contact carrier part with the screen element;

Figure 5a

a multi-core cable with crimp contacts crimped on;

Figure 5b

the cable with a center contact inserted into the second contact carrier part;

Fig. 6a, b

the first contact carrier part in a second embodiment;

Fig. 7a, b

the aforementioned contact carrier part with the shielding element and the center contact;

8a, b

the aforementioned arrangement with the screen element additionally held thereon and the second contact carrier part latched thereon in a second embodiment;

Fig. 9a - d

the locking mechanism between the first and the second contact carrier part;

Fig. 10a - c

the arrangement from the 8 with the additionally inserted remaining crimp contacts;

Figure 11a

the aforementioned arrangement with the third contact carrier part in the state to be inserted;

Fig. 11b - c

the aforesaid assembly when inserted;

12a

the aforementioned arrangement with a shield connection element;

Figure 12b

the aforesaid arrangement with a selected sealing ring;

Fig. 12c - e

the aforementioned arrangement with a connector housing, a cable gland and a plug-side knurled screw.

The figures contain partially simplified, schematic representations. In some cases, identical reference symbols are used for the same but possibly not identical elements. Different views of the same elements could be scaled differently.

the Fig. 1a - d show a three-part contact carrier 1, which consists of a first 11, a second 12 and a third 13 contact carrier part.

the Fig. 1a shows the first contact carrier part 11 in a first embodiment. This contact carrier part 11 essentially has the basic shape of a three-sided, isosceles prism whose cross section is therefore formed by an isosceles triangle. Two outwardly open signal contact receptacles 110 are arranged in each leg surface of the prism-like basic shape. A cuboid latching formation 118 is integrally formed on their common leg edge in a section that is central in the insertion direction. A Y-shaped receiving slot 1104 adjoins this snap-on formation 118 on the plug-in side. On the base side, the Y-shaped receiving slot 1104 is delimited by a holder 114 .

the Fig. 1b shows the second contact carrier part 12 in a first embodiment. This has four energy contact receptacles 120, 120', one of which is designed as a central contact receptacle 120' and is arranged in a contact surface 124 which, when it is joined to the first contact carrier part 11, adjoins its base surface and its holder 114. Opposite the contact surface 124, the second contact carrier part 12 has an outer contour running in the cross section like a segment of a circle, in which the other three energy contact receptacles 120 are arranged open to the outside.

the Figures 1c and 1d show the third contact carrier part 13, which is essentially sleeve-shaped. On the plug-in side, the third contact carrier part 13 has a plug-in section 131 with a plug-in side 1310 through which through openings 1301, 1302, 1302', 1304 run. These are signal contact through-openings 1301, power contact through-openings 1302 with a central contact through-opening 1302' and a substantially Y-shaped shielding element through-opening 1304. "Substantially" in this case means that the mutually mirror-symmetrical sections of the Y-shape bend away from each other in their end areas.

Adjoining the plug-in section 131, the third contact carrier part 13 has a sleeve-shaped base section 138 with an insertion opening 130 on the cable connection side, which is arranged opposite the plug-in surface 1310. Adjoining this insertion opening 130, in the base section 138 is a latching slot 1308 that is open on the cable connection side and runs in the plug-side direction. Formed onto it on both sides and projecting laterally into the latching slot 1308 , latching hooks 133 pointing towards one another are introduced into the base section 138 at the slot edges. On the cable connection side, the snap-in hooks have 133 sliding bevels.

the Figures 2a and 2b show two types of crimp contacts 2, ie plug contacts with cable connection-side crimp connections 212, 222.

Contact pins with essentially cylindrical plug-in areas 211, 221 are arranged opposite the crimp connections 212, 222. On the mating side, the contact pins are rounded at their mating areas 211, 221. The contact pin of the energy contact 22 is also designed in the shape of a cylinder. The contact pin of the signal contact 21 runs At least in its plug-in area 211, it is cylindrical but slightly conical in at least one further section, which is not designated in any more detail.

the 3 shows an essentially, i.e. mirror-symmetrical, Y-shaped screen element 4 apart from minor deviations.

This has a first 41, a second 42 and a third 43 section. The two mutually mirror-symmetrical sections, namely the second 42 and the third 43 section of the Y-shape, first extend obliquely apart and then bend away from each other through anti-rotation surfaces 423, 433 formed in their end regions. On their outer areas, the anti-rotation surfaces 423, 433 also each have a stop step 424, only one of which can be seen in the drawing because the other is covered by the first section 41 of the screen element 4.

The first section 41 of the screen element 4 lies essentially in its plane of symmetry. A molded stop 48 is formed on its outer edge, which subsequently also fulfills the function of a ground connection element.

the Figures 4a and 4b show the first contact carrier part 11 together with the Y-shaped shielding element 4, which is inserted into the Y-shaped receiving slot 1104 of the first contact carrier part 11 and is thus held on its holding section 114. In the inserted state, the molded stop 48 of the shielding element 4 strikes the cuboid molded latch 118 of the first contact carrier part 11, thereby preventing it from being pushed in any further.

the Figure 5a shows a cable 5, namely a so-called hybrid cable, which is characterized in that it has both signal wires 51 for electrical Signal transmission and energy wires 52 for electrical energy transmission has. This cable 5 has a total of eight cores 50, namely four signal cores 51 and four power cores 52, which are each surrounded by at least electrical insulation and possibly also by a shield. In a stripped area, each of the wires 51, 52 is crimped with a crimp connection 212, 222 of a crimp contact 21, 22, 22'.

In the Figure 5b only one power wire 52' is shown; the other power lines 52 are not shown for reasons of clarity. This power wire 52' is connected to the crimp connection 222 of a power contact, namely a center contact 22'. The center contact 52' is inserted into the center recess 120' of the second contact carrier part 12 (first embodiment). It is easy to imagine that by assembling the second contact carrier part 12 with the first contact carrier part 11 from the Figure 4b the center contact 22' is automatically arranged essentially centrally in the mating face (cf. Figures 1a and b ).

However, a second embodiment of the contact carrier is also to be presented below.

the Figure 6a shows a first contact carrier part 11' in a second embodiment. This differs from the preceding contact carrier part 11 in that the center contact receptacle 120' is arranged on its holder 114. That is, the center contact 22 'can latch on the holder 114 of the first contact carrier part 11 in this design.

How from the Figures 7a and b shows, the signal contact receptacles 110 are nevertheless separated from one another by the Y-shaped shielding element 4 since the holder 114 is located on the side of the power contact receptacles 120 in this respect.

the Figure 8a shows the first 11 and second 12 contact carrier part with the Y-shaped shielding element 4 and the inserted center contact 22' in the first embodiment.

the Figure 8b shows the first 11' and second 12' contact carrier part with the Y-shaped shielding element 4 and the inserted center contact 22' in the second embodiment. The function of the stop step 424 can be seen particularly well. The stop step 424 prevents the second contact carrier part 12' from shifting in the direction of the plug-in side, ie to the left in the drawing.

the Fig. 9a - d show, using the example of the second embodiment, a locking mechanism for fixing the first 11′ and the second 12′ contact carrier part to one another.

the Figures 9a and 9b show the first 11′ and the second 12′ contact carrier part in the latched state in a section through the section on the cable connection side.

For this purpose, the first contact carrier part 11' has a locking recess 113' opposite one another in a section on the cable connection side at its two leg ends Figures 9d and c is explicitly indicated.

In the Figure 9d a cylinder-segment-like latching formation 123' is explicitly shown as a counterpart to this.

It is easy to imagine that the elasticity of the plastic material, in particular due to a slight deformation of the second contact carrier part 12', causes these two to latch Contact carrier parts 11 ', 12' is made possible with each other.

the Figures 10a - b show this latched arrangement with the Y-shaped shielding element and inserted crimp contacts 2, in the first ( Figure 10a ) and the second ( Figure 10b ) Execution.

the Figure 10c shows this arrangement without the crimp contacts 2 in cross section. From this it can be seen that the Y-shaped shielding cross 4 "overlaps" in the direction of insertion with the insulation and possibly also the shielding of the cores 51.

the 11 shows the aforementioned arrangement together with the third, sleeve-shaped contact carrier part 13.

In the Figure 11a this arrangement is still shown separately from the third contact carrier part 13, namely the sleeve, and is about to be pushed into the sleeve 13 through its insertion opening 130.

the Figures 11b and 11c show the arrangement in a state in which it is pushed into the sleeve 13 (third contact carrier part). The cuboid latching formation 118 is introduced into the latching slot 1308 and latched thereto by means of the latching hooks 133 (cf. Figures 1c and d ). The contact carrier 1 is thus mounted and the central contact 22 ′ is arranged essentially centrally in the plug-in face, ie in the middle of the plug-in section 131 when viewed from the plug-in direction. The other crimp contacts 21, 22 are also accommodated in the contact carrier and their respective plug-in areas 211, 221 protrude through the corresponding through-openings 1301, 1302 of the plug-in section 131.

the 12a shows the crimp contacts 2 and shield cross 4 provided, mounted contact carrier 1, with a substantially hollow-cylindrical shield connection element 40, which to it is intended to connect a braided shield of the cable 5 (not shown for reasons of clarity) to a metal connector housing 7 shown below.

the Figure 12b also shows a selection of sealing elements in the form of sealing rings 500, 510, 520, which differ in their inner diameter and are intended for different cable cross-sections.

the Fig. 12c - e show different views of the complete, assembled connector with attached cable 5, each from an outside view. The connector has a cable gland 6 with a molded cap nut, which is screwed onto the actual connector housing 7 on the cable connection side and thus fixes the cable 5 to the connector housing 7 . On the plug-in side, a knurled screw 8 is rotatably held on the plug-in connector housing 7 for locking/screwing with a mating connector on the plug-in side.

In particular, the Figure 12e , as the center contact 22 'viewed from the plug-in direction is arranged essentially in the middle of the plug-in section 131, ie essentially in the middle of the plug-in face. On closer inspection, a person skilled in the art will recognize that the center contact 22' is not located exactly on the central axis, but is arranged offset downwards by approximately 5% of the diameter in the drawing. This corresponds, for example, to the IEC 61076-2-113 standard from 2017.

At least the connector housing 7 consists of a metallic material. The screwed cable connection 6 and the knurled screw 8 can also consist of a metallic material or, in a further embodiment, of plastic for reasons of stability and shielding.

Even if different aspects or features of the disclosure are shown in combination in the figures, it is obvious to the person skilled in the art—unless stated otherwise—that the combinations shown and discussed are not the only possible ones. In particular, mutually corresponding units or complexes of features from different exemplary embodiments can be exchanged with one another.

Reference List

1

Contact carrier (multi-part)

11, 11'

first contact carrier part (signal contact carrier)

110

signal contacts

1104

Y-shaped receiving slot

113'

recess

114, 114'

bracket

118

cuboid rastanform

12

second contact carrier part (energy contact carrier)

120, 120'

Energy contacting, center contacting

123'

cylinder-segment-like latching formation

124

contact surface

13

third contact carrier part (sleeve)

130

insertion opening on the cable connection side

1301

signal contact through hole

1302, 1302'

Power contact via, center contact via

1304

screen element passage opening

1308

snap slot

131

mating section

1310

plug-in area

133

latch hook

2

crimp contacts

21

signal contact(s)

211

Mating area (signal contact)

212

Crimp connection (signal contact)

22, 22'

energy contact(s); center contact

221

Mating area (power contact)

4

Y-shaped screen element

41

first section of the Y-shaped screen element

42

second section of the Y-shaped screen element

43

third section of the Y-shaped screen element

423,433

anti-twist surfaces

424

touch level

40

shield connection element

48

Stop attachment/ ground connection element

5

multi-core electrical ("hybrid") cable

50

cores of the cable

51

signal wires

52

energy veins

500, 510, 520

various sealing elements/ sealing rings

6

Cable gland / union nut

7

connector housing

8th

Knurled screw / plug-side locking

Claims (16)

1. Contact carrier (1) for a plug connector, for receiving at least four 'electrical crimp contacts (2), of which at least two are designed as signal contacts (21) and at least a further two are designed as power contacts (22),
   wherein, for this purpose, the contact carrier (1) has at least two signal contact receptacles (110) and at least two power contact receptacles (120) and is furthermore designed in multiple parts, wherein a first contact carrier part (11) comprises the at least two signal contact receptacles (110) and a second contact carrier part (12) comprises at least one of the power contact receptacles (120), wherein a further one of the power contact receptacles is arranged as a central contact receptacle (120') in the contact carrier (1), between the first (11) and the second (12) contact carrier part, for receiving one of the power contacts, which is a central contact (22'), so that the entire contact carrier (1) has a total of at least four contact receptacles (110, 120, 120'), characterized in that at least one of the two said contact carrier parts (11, 12) comprises a holder (114), by means of which a Y-shaped receiving slot (1104) is formed in the contact carrier (1) so that a Y-shaped shield element (4) can be held on the holder (114), by means of which shield element at least two signal contact receptacles (110) can be separated both from each other and from the power contact receptacles (120, 120').
2. Contact carrier (1) according to Claim 1, wherein the first contact, carrier part (11) comprises two pairs of signal contact receptacles (110), which are separated from each other, at least in certain areas, by part of the Y-shaped receiving slot (1104) and can thus be separated by a first portion (41) of the Y-shaped shield element (4).
3. Contact carrier (1) according to one of the preceding claims, wherein the second contact carrier part (12) comprises at least three power contact receptacles (120, 120'), which are separated from the signal contact receptacles (110), at least in certain areas, by a further part of the receiving slot (1104), and can each be separated by a second (42) or third (43) portion of the shield element (4).
4. Contact carrier (1) according to one of the preceding claims, wherein the second contact carrier part (12) has a contact surface (124) in which the central contact receptacle (120') is arranged.
5. Contact carrier (1) according to one of Claims 1 to 3, wherein the central contact receptacle (120') is arranged on the holder (114') of the first contact carrier part (11').
6. Contact carrier (1) according to one of the preceding claims, characterized in that the first (11, 11') and the second (12, 12') contact carrier part can be fixed to each other.
7. Contact carrier (1) according to Claim 6, characterized in that a third contact carrier part (13) is formed by a sleeve with an insertion opening (130) on the cable connection side, through which the first (11, 11') and the second contact carrier part (12, 12') in the fixed-together state, together with the Y-shaped shield element (4) held thereon and the crimp contacts (2) furthermore fixed thereto, can be pushed into the sleeve-shaped third contact carrier part (13).
8. Contact carrier (1) according to Claim 7, characterized in that the third contact carrier part (13) has, opposite the insertion opening (130), a mating portion (131) with through-openings (1301, 1302, 1302', 1304), which are suitable for guiding-through mating areas (211, 221) of the said crimp contacts (2) and for guiding-through a mating-side portion of the Y-shaped shield element (4) .
9. Contact carrier (1) according to Claim 8, characterized in that one of the through-openings, namely a central through-opening (1302'), serves for guiding-through the central contact (22') on the mating side and is arranged substantially centrally in the mating portion (131) of the contact carrier (1), as seen from the mating direction.
10. Contact carrier (1) according to one of the preceding claims, wherein the contact carrier (1) has a cylindrical basic shape and is provided for use in a circular plug connector.
11. System comprising a contact carrier (1) according to one of the preceding claims, a Y-shaped shield element (4) and eight crimp contacts (2), of which four are designed as signal contacts (21) and of which a further four are designed as power contacts (22), wherein the crimp contacts (2) each comprise a cylindrical mating area (211, 221), which is formed as a contact pin in each case, wherein the contact pins (211) of the signal contacts (21) have a diameter which is smaller than the diameter of the contact pins (221) of the power contacts (22).
12. System comprising a contact carrier (1) according to one of Claims 1 to 10, a Y-shaped shield element (4) and eight crimp contacts (2), of which four are designed as power contacts and of which a further four are designed as signal contacts, and wherein the crimp contacts (2) each comprise a hollow cylindrical mating area by means of which a respective contact socket is formed, wherein the contact sockets of the power contacts have an internal diameter which is greater than the internal diameter of the contact sockets of the signal contacts.
13. System according to one of Claims 11 to 12, wherein

    - the signal contacts (21) are integrated in the signal contact, receptacles (110) of the first contact carrier part (11),

    - the power contacts (22, 22') are integrated in the power contact receptacles (120) of the first (11) and/or the second (12) contact carrier part, wherein

    - the Y-shaped shield element (4) is fixed to the first contact carrier part (11), wherein the first (11, 11') and the second (12, 12') contact carrier part are latched to one another, wherein

    - the first (11, 11') and the second (12, 12') contact carrier part in the fixed-together state, together with the Y-shaped shield element (4) and the crimp contacts (2), are inserted into the third contact carrier part (13) designed in the shape of a sleeve, wherein

    - the mating areas . (211, 221) of the crimp contacts (2) and a mating-side portion of the shield cross (4) are arranged at least partially in the through-openings (1301, 1302, 1304) of the mating portion (131) of the third contact carrier part (13).
14. System according to Claim 13, wherein the central contact (22') is received in the central contact receptacle (120') and thus arranged substantially centrally in the contact carrier (1).
15. Plug connector, comprising a system according to one of Claims 11 to 14, a plug connector housing (7) with a mating side locking means (8) and a cable gland (6) and at least one sealing element (500, 510, 520).
16. Method for assembling a system according to one of Claims 11 to 14, characterized by the following steps:

    - mounting the Y-shaped shield element (4) on the holder (14, 14') of the multi-part contact carrier (1);

    - crimping electrical conductors (52, 52') to the crimp contacts (2);

    - placing the central contact (22') in the associated power contact receptacle (120') of the multi-part contact carrier (1);

    - mutually fixing the first and the second contact carrier part (11, 11', 12, 12') to each other;

    - incorporating the remaining power contacts (22) in the power contact receptacles (120) of the second contact carrier part (12) and the four signal contacts (21) in the signal contact receptacles (110)of the second contact carrier part (11, 11');

    - jointly pushing the first (11, 11') contact carrier part and the second (12, 12') contact carrier part, fixed thereto, with the Y-shaped shield element (4) held thereon and the crimp contacts (2) received therein into the third contact carrier part (13) through the insertion opening (130).

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